Photosensitive gaseous detectors, first developed for Cherenkov Light Imaging, are showing increasing potentialities for the detection and imaging of photons emitted by scintillators. The progress is coming from new scintillators emitting ultraviolet photons, the availability of solid photocathodes associated with high-gain gaseous detectors, and the progress in the amplifying structure of gaseous detectors permitting the imaging of single photoelectrons.